将编译器更改为Clang

Question

好的，我正在尝试安装WASM组件，并且不断收到此错误，我该怎么办？

cmake -DBINARYEN_BIN=~/binaryen/bin -DOPENSSL_ROOT_DIR=/usr/local/opt/openssl -DOPENSSL_LIBRARIES=/usr/local/opt/openssl/lib -DCMAKE_CXX_COMPILER=/path/to/c++ -DCMAKE_C_COMPILER=/path/to/cc -DCMAKE_BUILD_TYPE=Debug ..
-- The C compiler identification is unknown
-- The CXX compiler identification is unknown
CMake Error at CMakeLists.txt:2 (project):
  The CMAKE_C_COMPILER:

    /path/to/cc

  is not a full path to an existing compiler tool.

  Tell CMake where to find the compiler by setting either the environment
  variable "CC" or the CMake cache entry CMAKE_C_COMPILER to the full path to
  the compiler, or to the compiler name if it is in the PATH.

-- Configuring incomplete, errors occurred!
See also "/home/Usr/eos/build/CMakeFiles/CMakeOutput.log".
See also "/home/Usr/eos/build/CMakeFiles/CMakeError.log".

Answer 1

解决该问题的第一步是执行错误日志明确建议的操作。

您需要告诉它您的gcc（或clang）编译器在哪里，您可以通过键入which gcc或您的标题建议的which clang来找到它。

然后对您的g++编译器执行相同的操作。

如果您没有任何一个，则需要先安装它们。

然后只需将cmake命令中的/path/to/cc和path/to/c++更改为实际路径即可。

Answer 2

只需将正确的路径设置为CMAKE_C_COMPILER和CMAKE_CXX_COMPILER 。 您可以在CMakeLists.txt或使用-D的命令行中完成此操作